* Maxime Coquelin ([email protected]) wrote:
>
>
> On 06/28/2017 09:00 PM, Dr. David Alan Gilbert (git) wrote:
> > From: "Dr. David Alan Gilbert" <[email protected]>
> >
> > Tell QEMU we understand the protocol features needed for postcopy.
> >
> > Signed-off-by: Dr. David Alan Gilbert <[email protected]>
> > ---
> > contrib/libvhost-user/libvhost-user.c | 3 ++-
> > 1 file changed, 2 insertions(+), 1 deletion(-)
> >
> > diff --git a/contrib/libvhost-user/libvhost-user.c
> > b/contrib/libvhost-user/libvhost-user.c
> > index c1716d1a62..1c46aecfb3 100644
> > --- a/contrib/libvhost-user/libvhost-user.c
> > +++ b/contrib/libvhost-user/libvhost-user.c
> > @@ -797,7 +797,8 @@ vu_set_vring_err_exec(VuDev *dev, VhostUserMsg *vmsg)
> > static bool
> > vu_get_protocol_features_exec(VuDev *dev, VhostUserMsg *vmsg)
> > {
> > - uint64_t features = 1ULL << VHOST_USER_PROTOCOL_F_LOG_SHMFD;
> > + uint64_t features = 1ULL << VHOST_USER_PROTOCOL_F_LOG_SHMFD |
> > + 1ULL << VHOST_USER_PROTOCOL_F_POSTCOPY;
>
> Maybe advertising VHOST_USER_PROTOCOL_F_POSTCOPY could be done only
> if userfaultfd syscall is supported?
Done.
Dave
> > if (dev->iface->get_protocol_features) {
> > features |= dev->iface->get_protocol_features(dev);
> >
--
Dr. David Alan Gilbert / [email protected] / Manchester, UK
